Herbert l



(No Model.)

H. L. GURRIER.

PUSH BUTTON.

No. 404,033. Patented May 28,1889

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N PETERS. Pbuwmbo a her. Washington. D. c.

UNITED STATES PATENT OFFICE.

HERBERT Ii. CURRIER, OF LYNN, MASSACHUSETTS, ASSIGNOR TO HIMSELF ANDALBERT II. BREED, OF SAME PLACE.

PUSH-BUTTON.

SPECIFICATION forming part of Letters Patent No. 404,033, dated May 28,1889. Application filed July 12, 1888. Serial No. 279,699. (No model.)

To all whom, it may concern:

Be it known that I, HERBERT L. OURRIER, of Lynn, in the county of Essex,State of Massachusetts, have invented a certain new and usefulImprovement in Push-Buttons, of

which the following is a description sufficiently full, clear, and exactto enable any person skilled in the art or science to which saidinvention appertains to make and use the same, reference being had tothe accompanying drawings, forming part of this specification, in whichFigure 1 is a side elevation of a push-button of the ordinaryconstruction, a portion of r 5 the cap being broken away to show theinterior; Fig. 2, a top plan view of my improved button, the cap beingbroken away to show the interior and the button proper removed; Fig. 3,a sectional view online a a in Fig. 2;

and Figs. 4, 5, and (3, enlarged views showing certain details ofconstruction.

Like letters and figures of reference indicate corresponding parts inthe different figures of the d 'awings.

2 5 My invention relates to that class of pushbuttons which are employedin connection with annunciators, electric bells, &c.; and it consists incertain novel features, as hereinafter fully set forth and claimed, theobject 0 being to produce a simpler and more effective device of thischaracter than is now in ordinary use.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation.

In the drawings, A represents the body of the button; B, the cap, and Cthe button proper.

40 The body A is cylindrical in form and exteriorly screw-threaded beingprovided at the base with an annular flange, l), and preferably composedof wood.

The cap B is provided with an interiorlyscrew-threaded socket which isdeeper or higher than said body on which itis disposed, thus leaving achamber, u, between the body and cap. A metallic plate, f, is secured byscrews (Z to the top of the body A within said chamber, a flat curvedmetallic spring, 2', being also secured by one end to said body by meansof screws 9.

The button proper, 0, consists of a cylindrical porcelain bolt, whichpasses through a central opening in the cap B and rests on the freeend15.01? the spring i in such a manner that when said button is pressedinward the spring i will be forced into contact with the the plate f.

In push-buttons as ordinarily constructed the conducting-wires D II,leading to different poles of the battery, are cut or broken at thebutton, and the two ends of the wire D thus formed are forced. upwardthrough a vertical opening in the body A and coiled around the heads ofthe screws g in contact with the spring 2', the ends of the wire 11 bein g secured in the samemanner on the screws (Z in contact with theplates f, as shown in Fig. 1. This method necessitates the expenditureof much time and labor in attaching the button to the wires, and thebreak in the wires causes a loss of electricity and interrupts thecurrent. To obviate these obj ections, I form a circular groove orchamber, 71, (see Fig. 3,) on the under side of the body A.

A screw, 25, preferably composed of brass, is then inserted in the bodyA through the spring 6, and a similar screw through the plate said screwbeing of sufficient length to project into the chamber 72.

The screws 25 are provided at their lower ends with a hole, 35, and alateral slit, 36, opening into said hole. The hook thus formed at thelower end of the screw is entirely within the circumference of the bodyof the screw, so that the latter may be screwed through the insulatedblock or body A.

In the use of my improvement in attaching the push-button to the wiresthe screw 25 is turned out or back a small distance and the wireinserted in the hook 35, after which the screw is turned again until itshead is in contact with the spring '2' or plate f, as the case may be.This causes a loop or twist to 5 be formed in the wire, as shown inFigs. 4 and 5, which fastens it securely to said screw, the chamber 7Laffording room for said loop and avoidingthe necessity of having thepoints of the screws project beyond the bottom of the body A. a

It will be seen that by the use of my improvement the push-button can bequickly attached to the wires and the necessity for cutting the wiresfor this purpose entirely obviated.

Having thus explained my invention, What I claim is 1. The combinationof an insulating block or body provided with a recess or chamber in itsunder side, a metallic plate on the upper side of said body, a metallicspring, also on the upper side thereof, a cap surrounding said body, apush-button in said cap for forcing said spring into contact with theplate, and screws passing through said plate and spring, respectively,and through said body into the chamber in the under side thereof, saidscrews being provided with hooks at their lower ends within said chamberfor the conducting-wires.

2. The combination of an insulating block or body, a metallic plate onthe upper side thereof, a metallic spring, also on the upper sidethereof, a cap surrounding said body, a push-bitton in said cap forforcing said spring into contactwith the plate, and screws passingthrough said plate and spring, respectively, and through said body, saidscrews being provided at their lower ends with hooks which are entirelywithin the circumference of said body. I

HERBERT L. OURRIER.

Witnesses:

D. H. MILLETT, WVM. A. FAY

